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+/*******************************************************************
+ *  base64.h
+ *   © Copyright 1995 John Halleck
+ *   All Rights Reserved
+ *
+ *  ported to c++ by Michael Buesch <mbuesch@freenet.de>
+ *
+ * --ABSTRACT--  base64.h
+ * Do the base 64 encoding as used by PEM and MIME.
+ *
+ * --KEYWORDS--  base64.h
+ *
+ * --CONTENTS--  base64.h
+ * Date, Department, Author
+ *    23nov1994, John Halleck
+ * Revision history
+ *    For each revision: Date, change summary, authorizing document,
+ *    change department, section, author
+ *    23nov1994, Initial Creation, John Halleck
+ *    8apr1995, split library into hex and base64 libraries, John Halleck
+ * Unit purpose
+ *    (What does this do?)
+ *    [Nothing]
+ * External Units accessed
+ *    Name, purpose, access summary
+ *    [None]
+ * Exceptions propagated by this unit
+ *    [None]
+ * Machine-dependencies
+ *    Access type, purpose, and justification
+ *    [None]
+ * Compiler-dependencies
+ *    [None]
+ *********************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License version 2        *
+ *   as published by the Free Software Foundation.                         *
+ *                                                                         *
+ ***************************************************************************/
+
+/***************************************************************************
+ * copyright (C) 2004 by Ulf Schenk
+ * This file is originaly based on version 1.0.1 of pwmanager
+ * and was modified to run on embedded devices that run microkde
+ *
+ * $Id$
+ **************************************************************************/  
+
+
+#ifndef __BASE64_H
+#define __BASE64_H
+
+#include <string>
+
+using std::string;
+
+class Base64
+{
+protected:
+	struct Base64Ctx
+	{
+		int temp;	// Working value for input
+		int bytes;	// which input byte we are working on
+		string buf;	// Data buffer
+	};
+
+public:
+	Base64() {}
+	/** run algorithm self test */
+	static bool selfTest();
+
+	/** encode "data" */
+	string encode(const string &data);
+	/** decode "data" */
+	string decode(const string &data);
+
+protected:
+	/** initialize the context */
+	void initCtx();
+	/** finalize the context */
+	void encFinalizeCtx();
+	/** finalize the context */
+	void decFinalizeCtx();
+	/** encode a character */
+	void encodeChar(unsigned char c);
+	/** decode a character */
+	void decodeChar(char c);
+
+protected:
+	/** Base64 context */
+	Base64Ctx ctx;
+};
+
+#endif // __BASE64_H